Professional hermetic sliding doors
Automatic door systems for cleanrooms, hospital operating theatres, BSL laboratories and pharmaceutical environments with high hygiene requirements. Reliable air sealing for maintaining pressure cascades and preventing cross-contamination.
Maintaining critical ventilation parameters and pressure cascades
In strictly controlled environments — such as operating theatres, intensive care units, isolation rooms and pharmaceutical cleanrooms — maintaining pressure differences between adjacent spaces is a fundamental requirement. Uncontrolled air exchange through micro-gaps in conventional doors can compromise the safety of sterile areas.
The operating principle of a true hermetic sliding door is significantly different from that of conventional automatic sliding doors. In the final phase of the closing cycle, the special mechanism moves the door leaf downward while pressing it onto the continuous seals of the frame system.
This 3D pressing logic creates the physical airtight seal that reduces the passage of pathogens, fine dust, aerosols and unwanted airflows, while also reducing the load on the ventilation system.
Our systems are always adapted to the validation requirements of the facility, whether the project requires a flush cleanroom execution, an automatic operating theatre door or a hybrid door combined with lead shielding.
The technological foundations of perfect air sealing
3D pressing mechanism
The door leaf does not only slide sideways; before reaching the final closed position, it also moves downward and towards the frame. This presses the continuous silicone or EPDM seal firmly against the floor and frame.
Touch-free automation
Radar, proximity sensor and elbow-switch activation make hand-free passage possible. This is especially important in sterile healthcare and pharmaceutical environments.
Hygienic, gap-free surfaces
Flush-integrated windows, concealed fastening and stainless steel surfaces reduce dirt accumulation and make regular disinfection easier.
Solutions optimised for the application area
Clinical and operating theatre doors
For sterile areas, operating theatre blocks, intensive care units and isolation rooms. Optionally available with lead shielding for X-ray diagnostics or radiation therapy environments.
GMP cleanroom doors
Flush-closing, dust-free and gap-free design for pharmaceutical production, electronics manufacturing and cleanrooms according to ISO 14644. Surface finish and sealing support auditable operation.
Airlock systems
For biological safety laboratories and controlled transfer spaces. Interlock control prevents two doors from opening at the same time, supporting the stable isolation function of the airlock.
Technical and material quality parameters
Every hermetic door is custom-manufactured according to the on-site wall structure, cleanroom requirements, pressure differential and operating needs.
| Standard compatibility | Configurable for GMP and ISO 14644 cleanroom environments, as well as healthcare and laboratory applications |
| Door leaf material | WNr. 1.4301 or WNr. 1.4404 stainless steel, or food-safe painted steel surface on request |
| Sealing system | Continuous, replaceable silicone or EPDM profile with threshold-free, press-on hermetic closing |
| Drive system | Heavy-duty, quiet electromechanical automation, optionally with uninterrupted backup operation |
| Safety devices | Active infrared presence detection, reopening on obstacle detection and status feedback connectable to the control system |
| Special options | Flush-integrated vision window, lead insert for radiation-shielded execution, interlock airlock control, card reader or keypad integration |
| Opening impulse devices | Touch-free radar, elbow switch, foot switch, card reader and access-control-compatible operation |
Where is hermetic air sealing mandatory?
Conventional automatic sliding doors cannot reliably withstand pressure differences between rooms, and therefore cannot safely prevent unwanted air and particle transfer.
For separating operating theatres, intensive care units, isolation rooms and sterile circulation zones.
For protecting sterile production areas, packaging plants and validated cleanroom zones from uncontrolled airflow.
For airlock systems in biological safety laboratories where airflow control is a key safety requirement.
For cleanrooms where even the smallest contaminant particle can cause production defects or rejects.
Prepare for the strictest audits with professional door systems.
Send us the planned facility parameters, cleanroom classification, clear opening size, wall structure type and pressure cascade requirements. We help specify a hermetic door system matched to the exact hygiene and ventilation requirements of your project.